3 Common IBS Myths

Irritable Bowel Syndrome (IBS) is a chronic condition that affects the normal functioning of the digestive system. It is diagnosed based on symptoms rather than a definitive test as there are currently no biomarkers we can use to diagnose IBS (e.g. blood tests). Common symptoms experienced by individuals with IBS include abdominal pain, bloating, diarrhoea, and constipation. Which type of IBS you are considered to have is determined by your most predominant symptom; diarrhoea is IBS-D, constipation is IBS-C, a mixture is IBS-M, and if there is no predominant symptom with these constantly changing it can be considered IBS-U (undefined IBS).

Currently, approximately 1 ni 10 individuals are affected by IBS, and unfortunately, there is no known cure. As a result, many people unknowingly seek information from unreliable sources, leading to myths around the condition.

This article discusses the top 3 IBS myths that we hear from our patients in clinic.

1. Sugar Causes IBS Flare Ups

While sugar may have a negative impact on overall health, it is generally well absorbed by the digestive system. Certain types of sugar, such as fructose, may provoke symptoms in individuals with specific intolerances, but these typically need to be consumed in large quantities to have an effect.

In reality, reactions to high-sugar foods are more often due to other factors, including portion size, fat content, or the presence of FODMAPs. For example, foods like cake or chocolate contain not only sugar but also other common IBS triggers such as fat, lactose, and FODMAPs such as fructans.

2. IBS leads to Malabsorption

Although some IBS symptoms can suggest impaired food absorption, this is typically not the case. Individuals with IBS may experience weight loss or nutritional deficiencies. But this is more commonly due to dietary restrictions and food avoidance rather than malabsorption. It is also possible for an individual to have a concurrent malabsorption issue, such as lactose intolerance, which can produce symptoms similar to IBS, further complicating the diagnosis.

3. Fasting Improves IBS Symptoms

For those suffering from severe IBS symptoms, skipping meals may seem like an appealing solution. While this may provide temporary symptom relief, irregular eating patterns have actually been shown to exacerbate IBS symptoms in the long term. It is essential to maintain consistent eating habits to help manage the condition effectively.

Take Home Message

IBS is a complex condition and there is a great deal of misinformation circulating online. It is crucial to consult with a registered dietitian for accurate, evidence-based guidance in managing your IBS.